Scan showed two sacs

Ei

I had a scan this morning which was supposed to be a dating scan but because my notes for some reason didn’t show I had previously miscarried and then fell pregnant straight away it showed I was 9 weeks. Anyway I was told still too early to give a date but what did show up was two sacs. One that was looking healthy the other I was told looked abnormal. It was explained to me that it could be fluid or it could be another baby , however they won’t be able to tell just yet as I’m actually only 5 weeks . Anyone else had the same experience as this ? It’s left us in a bit of shock as we don’t know what to think